Light mag. 3.9 earthquake - 15 km northeast of Laval, Mayenne, Pays de la Loire, France, on Tuesday, Oct 19, 2021 at 7:37 am (GMT +2) -

Light mag. 3.9 earthquake - 15 km northeast of Laval, Mayenne, Pays de la Loire, France, on Tuesday, Oct 19, 2021 at 7:37 am (GMT +2) Light mag. 3.9 earthquake - 15 km northeast of Laval, Mayenne, Pays de la Loire, France, on Tuesday, Oct 19, 2021 at 7:37 am (GMT +2)

Light magnitude 3.9 earthquake at 14 km depth

19 Oct 05:42 UTC: First to report: RENASS after 5 minutes.
Update Tue, 19 Oct 2021, 05:51
Small magnitude 3.9 earthquake 15 km northeast of Laval, France
3.9 quake 19 Oct 7:37 am (GMT +2)
3.9 quake 19 Oct 7:37 am (GMT +2)
Just 13 minutes ago, a 3.9-magnitude earthquake struck near Laval, Mayenne, Pays de la Loire, France. The tremor was recorded in the morning on Tuesday, October 19th, 2021, at 7:37 am local time, at a shallow depth of 13.6 km below the surface.
The event was filed by France's Réseau National de Surveillance Sismique (RéNaSS), the first seismological agency to report it.
Based on the preliminary seismic data, the quake should not have caused any significant damage, but was probably felt by many people as light vibration in the area of the epicenter.
Weak shaking might have been felt in Gesnes (pop. 180) located 1 km from the epicenter, Montsûrs (pop. 2,100) 3 km away, Bonchamp-lès-Laval (pop. 5,100) 11 km away, Evron (pop. 7,800) 14 km away, Laval (pop. 50,500) 15 km away, Changé (pop. 5,200) 15 km away, and Mayenne (pop. 15,600) 18 km away.
Other towns or cities near the epicenter where the quake might have been felt as very weak shaking include Vitré (pop. 17,300) located 45 km from the epicenter.
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Earthquake data

Earthquake details

Date & timeOct 19, 2021 05:37:42 UTC -
Local time at epicenterTuesday, Oct 19, 2021 at 7:37 am (GMT +2)
Depth13.6 km
Epicenter latitude / longitude48.14221°N / 0.59541°W (Mayenne, Pays de la Loire, France)
Antipode48.142°S / 179.405°E
Shaking intensityLight shaking
Felt2 reports
Primary data sourceRENASS (Réseau National de Surveillance Sismique (RéNaSS))
Nearby towns and cities1 km (1 mi) SW of Gesnes (pop: 182) | Show on map | Quakes nearby
14 km (9 mi) W of Evron (Mayenne) (pop: 7,810) | Show on map | Quakes nearby
15 km (9 mi) ENE of Laval (pop: 50,500) | Show on map | Quakes nearby
18 km (11 mi) S of Mayenne (pop: 15,600) | Show on map | Quakes nearby
30 km (19 mi) SE of Ernée (Mayenne) (pop: 6,130) | Show on map | Quakes nearby
36 km (22 mi) NNE of Château-Gontier (pop: 12,300) | Show on map | Quakes nearby
39 km (24 mi) NNW of Sablé-sur-Sarthe (pop: 14,700) | Show on map | Quakes nearby
45 km (28 mi) E of Vitré (Brittany) (pop: 17,300) | Show on map | Quakes nearby
125 km (78 mi) NE of Nantes (pop: 277,300) | Show on map | Quakes nearby
231 km (144 mi) WSW of Paris (Île-de-France) (pop: 2,138,600) | Show on map | Quakes nearby
Weather at epicenter at time of quakeMist 15.9°C (61 F), humidity: 94%, wind: 4 m/s (7 kts) from S
Estimated seismic energy released4.5 x 1010 joules (12.4 megawatt hours, equivalent to 10.7 tons of TNT) | about seismic energy
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Data for the same earthquake reported by different agencies

Info: The more agencies report about the same quake and post similar data, the more confidence you can have in the data. It takes normally up to a few hours until earthquake parameters are calculated with near-optimum precision.
3.914 kmFrance: Near LavalRENASS

User reports for this quake (4)

User reports estimate the perceived ground shaking intensity according to the MMI (Modified Mercalli Intensity) scale.
Leave a comment if you find a particular report interesting or want to add to it.
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Hilchenbach / Weak shaking (MMI III) / rattling, vibrating / 1-2 s : dicke Tante zu Besuch gehabt... | 7 users found this interesting.  
paris / not felt : False positive, deleted. | One user found this interesting.  
Le Mans / not felt (reported through our app)
Vernantes / Light shaking (MMI IV) / horizontal (sideways) swinging / 5-10 s (reported through our app)
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